McVitie Weston valve collection, Marconi WT Co Catkin valve, type MPT4
- Made:
- 1935
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© The Board of Trustees of the Science Museum
Marconi WT Co Catkin valve, type MPT4, marked 38
Science Museum Group
© The Board of Trustees of the Science Museum
Marconi WT Co Catkin valve, type MPT4, marked 38, (RMW/Y667B - McVitie Weston number), by Marconi Wireless Telegraph Company Limited, 1935.
